First, give it a few minutes. If there happens to be a lot of activity on the server (like on a trade show day) it can take up to 15 minutes for our system to finish processing the order and send your confirmation.
If you still haven't received the email, check your spam or junk mail folders. Be sure to add email@example.com to your address book or "allow" list to ensure you receive all emails. If you still haven't received the email, let us know.